package com.cjg.winter.controller;

import com.alibaba.fastjson.JSONObject;
import com.cjg.winter.common.CodeUtil;
import com.google.code.kaptcha.Constants;
import com.google.code.kaptcha.Producer;
import com.google.gson.JsonObject;


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.awt.image.BufferedImage;

@RestController

public class CodeController {

    @Autowired
    private Producer captchaProducer = null;
    @RequestMapping("/review")
    public void getKaptchaImage(HttpServletRequest request, HttpServletResponse response) throws Exception {

        HttpSession session = request.getSession();
        response.setDateHeader("Expires", 0);
        response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
        response.addHeader("Cache-Control", "post-check=0, pre-check=0");
        response.setHeader("Pragma", "no-cache");
        response.setContentType("image/jpeg");
        //生成验证码
//        request.getSession().setAttribute();
        String capText = captchaProducer.createText();
        session.setAttribute(Constants.KAPTCHA_SESSION_KEY, capText);
        //向客户端写出
        BufferedImage bi = captchaProducer.createImage(capText);
        ServletOutputStream out = response.getOutputStream();
        
        ImageIO.write(bi, "jpg", out);
        try {
            out.flush();
        } finally {
            out.close();
        }
    }



//        @PostMapping("/hello")
//        public String hello( HttpServletRequest  request) {
//            if (!CodeUtil.checkVerifyCode(request)) {
//                System.out.println("123");
//                return "验证码有误！";
//            } else {
//                System.out.println("fdjaskfhsadfkdfjk");
//                return "hello,world";
//
//            }
//        }




    }


